Ihad a leaky gas guage at the top of my alluminum tank that three
marinas couldn't fix. I mixed up a great big batch of Marine-Tex and put
it on top of the thing and it has worked lake a charm. It looks like
someone took a crap on it. What a lousy way to fix something, but after
a while, gasoline in the bilge will cause one to lower some of your
standards.

I don't see why it wouldn't work to fix a hole in an aluminum boat.

Capt. Jeff